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CVSS: 7.4EPSS: 0%CPEs: 12EXPL: 0

A flaw was found in the way samba client before samba 4.4.16, samba 4.5.14 and samba 4.6.8 used encryption with the max protocol set as SMB3. The connection could lose the requirement for signing and encrypting to any DFS redirects, allowing an attacker to read or alter the contents of the connection via a man-in-the-middle attack. Se ha encontrado un fallo en la forma en la que el cliente samba en versiones anteriores a samba 4.4.16, samba 4.5.14 y samba 4.6.8 utilizaba cifrado con el protocolo max establecido en SMB3. La conexión podía perder el requisito de firmar y cifrar con cualquier redirección DFS, lo que permitía a un atacante leer o alterar el contenido de la conexión mediante un ataque Man-in-the-Middle (MitM). A flaw was found in the way samba client used encryption with the max protocol set as SMB3. • http://www.securityfocus.com/bid/100917 http://www.securitytracker.com/id/1039401 https://access.redhat.com/errata/RHSA-2017:2790 https://access.redhat.com/errata/RHSA-2017:2858 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12151 https://security.netapp.com/advisory/ntap-20170921-0001 https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03817en_us https://www.debian.org/security/2017/dsa-3983 https://www.samba.org/samba/security/CVE-20 • CWE-300: Channel Accessible by Non-Endpoint CWE-310: Cryptographic Issues •